Alpha lipoic acid

Alpha lipoic acid CAS 1077-28-7Synonyms: dl-thioctic acid;dl-alpha-lipoic acid; dl-6,8-dithiooctanoic acid; 5-(dithiolan-3-yl)valeric acid;alpha- lipoic acidMolecular Formula: C8H14O2S2Molecular Weight: 206.32Packaging and storage: Preserve in well-closed containersStandard: USP30Character: Yellow or yellowish crystalline powder,Assay: 99.0% 101.1% (anhydrous basisC8H14O2S2 ); The retention time of the peak for lipoic acid in the chromatogram of the assay preparation corresponds to that in the chromatogram of the standard preparation, as obtained in the assay;Melting point: 60.C 62.C;Specific optical rotation: -1.0 1.0;Loss on drying: ≤0.2%;Residue on ignition: <0.1%;Heavy metals: ≤ 0.001%;